Abstract
To predict motions of both the micro and the macro free surfaces, we have developed a new method -called a particle/CIP hybrid method- that combines advection equations of the particle method with those of the CIP method. The new method was applied to a dam-break problem, namely, the fragmentation of a liquid column was predicted, and the prediction was found to agree well with experimental measurements. It was also used to predict breakup of a liquid film in a swirl injector used in automobiles. In this case, the predicted jet angle agreed well with the measured angle, qualitatively.
